THOUSAND OAKS, Calif. and COLLEGEVILLE, Pa., November 13, 2005 Amgen (NASDAQ: AMGN) and Wyeth Pharmaceuticals, a division of Wyeth (NYSE: WYE), today announced data from a long-term blinded study of anti-TNF agent in patients with rheumatoid arthritis (RA) demonstrated that more than three quarters of patients treated with Enbrel (etanercept) plus methotrexate combination therapy experienced no progression of joint damage at three years. These new results from the TEMPO (Trial of Etanercept and Methotrexate with Radiographic Patient Outcomes) study will be presented at the American College of Rheumatology's (ACR) Annual Scientific Meeting in San Diego, California.

"Rheumatoid arthritis is a chronic condition requiring long-term treatment. It is critical to provide patients with treatment options that not only reduce the signs and symptoms of the disease, but also inhibit the progression of joint damage," said Dsire van der Heijde, M.D., professor of rheumatology, University of Maastricht in the Netherlands. "The TEMPO results reinforce the benefits of ENBREL and methotrexate combination therapy and underscore the importance of effective treatment."

At three years, the majority of patients taking ENBREL and methotrexate combination therapy had no progression of joint damage. These results were significantly better than those achieved in ENBREL monotherapy and methotrexate monotherapy-treated patients. Patients receiving ENBREL monotherapy also had significantly better results than patients receiving methotrexate monotherapy. Total Sharp Score was calculated by assessing changes in joint space narrowing and bone erosion as captured by radiographic imaging.

Further, additional data presented at ACR showed that improvement in physical function was higher for the ENBREL combination group than for either therapy alone. Patients treated with ENBREL combination therapy experienced a 56 percent mean improvement in Health Assessment
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Contact: Christine Cassiano, Amgen
805-447-4587
Porter Novelli
15-Nov-2005